Table 4 Time between UKA and TKA for patients undergoing conversion
Number of UKA patients | UKA patients who underwent conversion to TKA | Average time between UKA and TKA for patients undergoing conversion | |||||||
|---|---|---|---|---|---|---|---|---|---|
# | # | % | p | RR | 95% CI | Days | Δ | 95% CI | |
Total | 7,808 | 358 | 4.59% | - | - | - | 816.997 (SD 699.070) | - | - |
Age at UKA | |||||||||
< 70 | 3,180 | 193 | 6.07% | - | - | - | 857.802 (SD 757.430) | - | - |
70–79 | 3,694 | 150 | 4.06% | < 0.0001 | 0.6691 | (0.5434, 0.8238) | 782.020 (SD 641.146) | 75.802 | (44.144, 107.460) |
> 80 | 1,021 | 16 | 1.57% | < 0.0001 | 0.2582 | (0.1558, 0.4278) | 686.563 (SD 414.917) | 171.239 | (124.164, 218.314) |
Gender | |||||||||
Female | 4,216 | 211 | 5.00% | - | - | - | 851.957 (SD 659.386) | - | - |
Male | 3,592 | 147 | 4.09% | 0.0547 | 0.8177 | (0.6656, 1.0048) | 766.816 (SD 751.853) | 85.141 | (53.5070, 119.7749) |